// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "ui/wm/core/masked_window_targeter.h"

#include "ui/aura/window.h"
#include "ui/events/event.h"
#include "ui/gfx/path.h"

namespace wm {

MaskedWindowTargeter::MaskedWindowTargeter(aura::Window* masked_window)
    : masked_window_(masked_window)
{
}

MaskedWindowTargeter::~MaskedWindowTargeter() { }

bool MaskedWindowTargeter::EventLocationInsideBounds(
    aura::Window* window,
    const ui::LocatedEvent& event) const
{
    if (window == masked_window_) {
        gfx::Path mask;
        if (!GetHitTestMask(window, &mask))
            return WindowTargeter::EventLocationInsideBounds(window, event);

        gfx::Size size = window->bounds().size();
        SkRegion clip_region;
        clip_region.setRect(0, 0, size.width(), size.height());

        gfx::Point point = event.location();
        if (window->parent())
            aura::Window::ConvertPointToTarget(window->parent(), window, &point);

        SkRegion mask_region;
        return mask_region.setPath(mask, clip_region) && mask_region.contains(point.x(), point.y());
    }

    return WindowTargeter::EventLocationInsideBounds(window, event);
}

} // namespace wm
